Process of making nozzles



'Sept. 14 1926.

J. H. TAYLOR PROCESS OF MAKING NOZZLES Filed Feb. 7. 1923 Patented Sept. 14, 192 6.

UNITED STATES JAMES HALL TAYLOR, OF CHICAGO; ILLINOIS.

PROCESS OF MAKING NOZZLES.

Application filed February 7, 1923. Serial No. 617,534.

My invention relates to a process of manufacturing nozzles such as are commonly used in connection with steam boilers, and it contemplates an improvement over the method, whereby an integral article was formed, set forth in my United States Letters Patent 1,023,228, issued April 16, 1912.

In, general, I propose to provide a novel method of forming the flared cross section of the wall of the nozzle or tubular member so as to increase the thickness thereof at the junction with the major flange and the nozzle. So far as the article is concerned, the result is increase of strength at the juncture and a more clearly defined line or demarkation between the surface of the major flange and the inner surface of the tubular member. The new method, employed in order to secure this new article, accomplishes its purpose without complicating the patented method of producing an integral nozzle and lies in the manner in which the above results are secured.

The process of my invention will be best understood by illustrations showing the results of the various steps in the process.

In the accompanying drawings,

Figure 1 is a cross-sectional view of the wrought metal ingot;

Figure 2 is a plan view of the blank after the first step in the process has been carried out;

Figure 3 is a diametrical sectional view of the member shown in Fig. 2;

Figure 4: is a view similar to Fig. 3 showin the result of the next step in the process;

Figure 5 is a View similar to Fig. 4 showing the next step in the process;

Figure 6 is a plan view of the finished nozzle; and

Figure 7 is a diametrical section of the finished nozzle.

The billet of wrought metal, from which the nozzle is to be formed, is shown at a. By the first step in the process this billet is heated and formed, by means of dies, into a circular body 6 having a flange 0 at the top thereof, a circular concentric depression d being preferably formed in the top of the body, and a concentric ridge a being formed on the top of the flange, the ridge lying inward of the periphery approximately a distance equal to the depth of the ultimate major flange on the finished article. This is shown in Figures 2 and 3. The blank, at

forge heat, is then subjected to the action of dies which stretch down the middle portion,

as shown in Figure 4, so that the body b may be brought down and the pocket d formed or enlarged to the extent of the pocket shown at cl. The result is a tubular part at 0. That part of the flange a lying outside the ridge a becomes the ultimate flange 0, while the inner section, since the pocket d tapers downwardly, forms part ofthe tube 0, as illustrated. It will be noted that in this section the metal of the ridge is brought down to form the edge I) and to make the juncture between the flange 0 and the tubular member 0 thicker than the lower portion of the wall of the member 6, as illustrated at w. Desirably greater strength at this point is thus obtained, and a desirably sharper edge is secured. The next step in my process consists in flattening down the body I) so that the flange 7, parallel to the flange 0, is formed. This is illustrated in Fig. 5. It will be noted that here the part 9 may remain and in that event it is removed so that a complete tube may result. The finished product is illustrated in Figures 6 and 7, this article thus comprising the two parallel flanges 0 and f and the tapered connecting tube 6.

I claim 1. The process for forming nozzles which consists in forming a cylindrical body with a flange and a concentric ridge of generally triangular cross-section on the surface of the flange, stretching the body away from the flange inwardly of said ridge and forming a concentric pocket therein, smashing down the body to form a second flange, and removing any remaining metal in line with the pocket to form a complete tube, said ridge producing a greater sectional thickness at the junction of said first flange and the tube, and causing the wall of said tube to be of flaring cross-section.

2. The process of forming nozzles which consists in first forming a cylindrical body with a flange and a concentric ridge of generally triangular cross-section on the surface of the flange, then stretching the body away from the flange inwardly of said ridge and forming a concentric pocket therein, then smashing down the body to form a second flange, and then removing any re maining metal in line with the pocket to form a complete tube, the metal in said ridge increasing the sectional thickness of the tube at its juncture with said first flange and causing the wall of said tube to be of fiarin cross-section.

3. '%he process of formin nozzles which consists in forming a cylin rical body with a flange and a concentric ridge of generally triangular cross-section on the surface of the fla e, and formin a tube of that portion of t e body inwar y of said ridge, and utilizing the metal in said rid e to reinforce the juncture between sai tube and said flange, and causing the wall of said tube to be of flaring cross-section.

4. The process of formin nozzles which consists in forming a cylin rical body with 15 lie at t e juncture of the flan e and tube 2 and will cause the wall of sai tube to be of flaring cross-section.

In wltness whereof, I hereunto subscribe my name this 1st day of February, 1923. JAMES HALL TAYLOR. 

